Roost Count

Bat monitoring activities are currently restricted in order to comply with government guidance on controlling the COVID-19 pandemic. For more information see our statement on COVID-19 and NBMP surveys.

Roost Count

Brown long-eared bats (Credit: Paul Sutherland)

Do you have a bat roost at or near your house? If you are interested in counting those bats then help us monitor how different bat species are faring across the UK by taking part in the Roost Count.

Steps you need to take for the Roost Count

Receive your survey pack in May

The pack includes survey forms and instructions to carry out this survey. The pack will be sent by email or by post depending on your preference. Please read these important health and safety documents.

Download the safety guidelines for this survey.

Download the Roost Count risk assessment template.

Download BCT's safeguarding policy statement.

*If the roost is not on your own property then ensure you get permission from the roost owner and arrange dates on which you can carry out your surveys*.

Count bats in June*

Roost Count


Position yourself beneath the roost exit at around sunset, watch the exit carefully and count bats as they emerge from a roost on at least two evenings.

*Lesser horseshoe bat counts start in late May, while greater horseshoe bat counts take place in July.

Submit your results

Roost Count


After completing your surveys, submit your results online or post your completed survey form to Freepost BAT CONSERVATION.

Your online recording pages enable you to view and download all data you have submitted. Read here how we share data via the NBN Atlas.

Next: Waterway Survey